Intermittent No 5th Gear/Upshifts; Downshifts Erratic 5-4

Cause:
1. Loose contact in the connector for throttle valve potentiometer in throttle valve switch connector (S2914x2).
2. Incorrect control unit (N15/1) installed (control unit version for mechanical speedometer installed instead of control unit for electronic speedometer).
3. Wiring (sockets 8 and 9) reversed at connector (X26)

Remedy:
1. Repair loose electrical contact in connector (S29/4x2).
2. Install correct control unit (N15/1).
3. Correct wiring connections at connector (x26).

Note:
Ensure that all fault codes are erased prior to releasing vehicle to customer.